ABSTRACT
This chapter explores how tripartite model of behavioural assessment builds upon some of the most commonly employed labels in dementia. The operational definition is composed of two elements: behavioural definition and parameters of the troublesome behaviour. 'Behaviour' refers to observable acts which can be recorded and measured. Considering less experimental studies that measure memory performance in the laboratory but instead addressing memory function in everyday life, need to bear in mind three essential principles. First, the natural state of affairs is not to remember: not to forget, but not even to remember. The second principle is that we choose to remember and when we do, we expend energy and effort storing that information. Finally, come to the third principle of everyday memory. The meaningfulness and hence relevance, of experience ebbs and flows as we travel on life's journey. Patients with dementia account for a significant majority of assaults and aggressive conduct in elderly inpatient settings.
